选择性蚀刻和二氟化氙的形成

Selective etching and formation of xenon difluoride

Abstract

This invention relates to a process for selective removal of materials, such as: silicon, molybdenum, tungsten, titanium, zirconium, hafnium, vanadium, tantalum, niobium, boron, phosphorus, germanium, arsenic, and mixtures thereof, from silicon dioxide, silicon nitride, nickel, aluminum, TiNi alloy, photoresist, phosphosilicate glass, boron phosphosilicate glass, polyimides, gold, copper, platinum, chromium, aluminum oxide, silicon carbide and mixtures thereof. The process is related to the important applications in the cleaning or etching process for semiconductor deposition chambers and semiconductor tools, devices in a micro electro mechanical system (MEMS), and ion implantation systems. Methods of forming XeF2 by reacting Xe with a fluorine containing chemical are also provided, wherethe fluorine containing chemical is selected from the group consisting of F2, NF3, C2F6, CF4, C3F8, SF6, a plasma containing F atoms generated from an upstream plasma generator and mixtures thereof.
本发明涉及选择性蚀刻和形成二氟化氙。尤其涉及用于从二氧化硅、氮化硅、镍、铝、TiNi合金、光致抗蚀剂、磷硅酸盐玻璃、硼磷硅酸盐玻璃、聚酰亚胺、金、铜、铂、铬、氧化铝、碳化硅和其混合物选择性除去下述材料的工艺,比如:硅、钼、钨、钛、锆、铪、钒、钽、铌、硼、磷、锗、砷和其混合物。该工艺与下列重要应用相关,即用于半导体沉积腔室和半导体工具、微电动机械系统(MEMS)中的器件、以及离子注入系统的清洁或蚀刻工艺。本发明也提供通过将Xe与含氟化学品反应而形成XeF2的方法,其中,所述含氟化学品选自F2、NF3、C2F6、CF4、C3F8、SF6、从上游等离子发生器产生的含F原子的等离子体和它们的混合物。

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Patent Citations (3)

    Publication numberPublication dateAssigneeTitle
    US-6018065-AJanuary 25, 2000Advanced Technology Materials, Inc.Method of fabricating iridium-based materials and structures on substrates, iridium source reagents therefor
    US-6355181-B1March 12, 2002Surface Technology Systems PlcMethod and apparatus for manufacturing a micromechanical device
    US-6736987-B1May 18, 2004Techbank CorporationSilicon etching apparatus using XeF2

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